HTP MICROCUT 600, Руководство пользователя

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12
CUTTING
A. CUTTING WITH A HAND TORCH
• The torch can be comfortably held in one
hand or steadied with two hands. Choose the
technique that feels most comfortable and
allows good control and movement. Position
the index fi nger or thumb to press the control
switch on the torch handle.
• For edge starts, hold the torch perpendicular
to the workpiece with the front of the tip on
the edge of the workpiece at the point where
the cut is to start. - Figure 3. For piercing,
angle the torch slightly to direct sparks away
from the torch until the pierce is complete.
Figure 4.
• For drag cuts keep the torch in contact with
the workpiece. For standoff cutting, hold the
torch within 5/64’”- 1/8” from the work.
• With the torch in starting position, press the
control switch. After an initial gas purge (pre-
air), the pilot arc will come on and remain on
for 3 seconds until the cutting arc starts.
•
Once on,
t he main arc remains on as long
as the control switch is held down, unless
the torch is withdrawn from the work or
torch motion is too slow. Keep moving
while cutting. Cut at a steady speed without
pausing. Maintain the cutting speed so that
the arc lag is about 30° behind the travel
direction. Fig. 5
Figure 5
Figure 4
• If the cutting arc is interrupted, and the torch
trigger is still pressed, the pilot arc comes
back on automatically for 3 seconds.
• To shut off the torch simply release the
control switch. When the switch is released
a post-fl ow will occur. If the torch trigger is
pressed during the post-fl ow, the pilot arc
will restart.
B. PIERCING WITH A HAND TORCH
Note: Recommended maximum piercing
capacity is 5/64”. If necessary to make a cut on
a metal sheet with a tickness more than 5/64”
without an edge start, make a hole at least 1/4”
using an electric drill to start cutting.
• When piercing with
a hand torch, tip the
torch slightly so that
blowback particles blow
away from the torch tip
(and operator) rather
than directly back into
it. Figure 4.
• Complete the pierce off
the cutting line and then
continue the cut onto
the line. Hold the torch
perpendicular to the
workpiece after the cut
is complete. Figure 6.
• Clean spatter and scale from the shield cup
and the tip as soon as possible. Spraying
or dipping the shield cup in anti-spatter
compound will minimize the amount of scale
which adheres to it.
C. CUTTING GRATES
To cut grates it is recommended to set the
cutting current between 20 - 34A.
WARNING
Disconnect primary power at the source
and wait that the torch has cooled before
disassembling the torch or torch leads.
Frequently review the Important Safety
Precautions at the front of this Manual. Be sure
the operator is equipped with proper gloves,
clothing, eye and ear protection. Make sure no
part of the operator’s body comes into contact
with the work piece while the torch is activated.
Figure 3
Figure 4
Figure 6